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WindowServer+LibGUI: Expose raw scroll wheel values to applications

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This is useful, for instance, in games in which you can switch held
items using the scroll wheel. In order to implement this, they
previously would have to either add a hard-coded division by 4, or look
up your mouse settings to adjust correctly.

This commit adds an MouseEvent.wheel_raw_delta_x() and
MouseEvent.wheel_raw_delta_y().
This commit is contained in:
circl 2022-03-26 23:04:47 +01:00 • committed by Andreas Kling
parent 148f8169a4
commit eeeaf410fb
11 changed files with 49 additions and 33 deletions
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2
Userland/Services/WindowServer/Screen.cpp
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@ -462,7 +462,7 @@ void ScreenInput::on_receive_mouse_data(const MousePacket& packet)
}
if (packet.z || packet.w) {
auto message = make<MouseEvent>(Event::MouseWheel, m_cursor_location, buttons, MouseButton::None, m_modifiers, packet.w * m_scroll_step_size, packet.z * m_scroll_step_size);
auto message = make<MouseEvent>(Event::MouseWheel, m_cursor_location, buttons, MouseButton::None, m_modifiers, packet.w * m_scroll_step_size, packet.z * m_scroll_step_size, packet.w, packet.z);
Core::EventLoop::current().post_event(WindowManager::the(), move(message));
}